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Vol.41, No.12, 870 ~ 878, 2003
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| Title |
| Effect of Oxide Species on the High Temperature Oxidation and Tensile Properties of Nano-Sized Oxide Dispersion Strengthened Fe-17% Cr Ferritic Alloys |
| 김익수 Kim Ig Su , 강창룡 Kang Chang Lyong , 이종문 Lee Jong Mun , 이병우 Lee Byeong U , 정상훈 Jeong Sang Hun , 이원희 Lee Won Hui |
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| Abstract |
| In order to develop mechanically alloyed nano-sized ferritic ODS alloys, we have investigated the effect of three kinds of oxide such as Y₂O₃, Al₂O₃ and TiO₂, on the high temperature tensile properties, high temperature oxidation behavior and corrosion resistance. Due to the most distribution of fine and spherical particles, ODS alloys containing Y₂O₃ raise yield strength and tensile strength at high temperatures considerably. The results of high temperature oxidation tests indicate that the ODS alloys containing Y₂O₃, Al₂O₃ and TiO₂ are resistant to oxidation between 823K and 1023K. The ODS alloy containing Y2O3 by attributed by to thermal safety of Y₂O₃ showed an ecellent characteristics in oxidation and corrosion. |
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| Key Words |
| ODS, Ferritic alloys, Mechanical alloying, High temperature oxidation, Tensile properties, Corrosion resistance, Nano-Sized Oxides |
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